CN1612502A - Communication terminal - Google Patents

Communication terminal Download PDF

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Publication number
CN1612502A
CN1612502A CNA2004100859473A CN200410085947A CN1612502A CN 1612502 A CN1612502 A CN 1612502A CN A2004100859473 A CNA2004100859473 A CN A2004100859473A CN 200410085947 A CN200410085947 A CN 200410085947A CN 1612502 A CN1612502 A CN 1612502A
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CN
China
Prior art keywords
base station
identification information
terminal
connect
terminal identification
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Granted
Application number
CNA2004100859473A
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Chinese (zh)
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CN100380848C (en
Inventor
日高宽之
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Kyocera Corp
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Kyocera Corp
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Publication date
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Publication of CN1612502A publication Critical patent/CN1612502A/en
Application granted granted Critical
Publication of CN100380848C publication Critical patent/CN100380848C/en
Expired - Fee Related legal-status Critical Current
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5046—Resolving address allocation conflicts; Testing of addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

A communication terminal of the invention confirms, first, a reception error occurrence rate of received signals when communication connection (channel connection) with a base station has not established. When the reception error occurrence rate is below a predetermined value, requests for communication connection with respect to the base station are repeated, the number of which is counted. Then, when the counted number has exceeded a predetermined value, re-assignment of terminal identification information is requested of the base station.

Description

Communication terminal
Priority request
The application requires the priority of the Japanese patent application No.2003-366083 that submitted on October 27th, 2003, and the content that is incorporated herein this application is for reference.
Technical field
The present invention relates to the communication terminal in the wireless communication system such as mobile communication system, the communication terminal in the wireless communication system particularly, wherein the base station terminal identification information distribute in its zone each communication terminal (for example, portable phone), so that each terminal distinguished mutually, thereby realize the connection of communication channel.
Background technology
In order to make each communication terminal (below be called " terminal ") difference mutually, the various systems of limited effective terminal identifier of period have been proposed dynamically to be distributed in.In an existing system, a given terminal iidentification is such as DHCP (DHCP) agreement, IP (Internet protocol) address of RFC (command request) 2131; Perhaps in an existing system, UATI (unicast access terminal identifier symbol) is used as a terminal identifier, such as the HRPD (High Rate Packet Data) that meets 3GPP2 (the third generation partner program 2) standard in the wireless environment.
Utilizing terminal identifier to identify in the system of each terminal of these kinds, when the identifier that is being assigned to terminal and radio communication base station (below be called the base station) occurs because can not discern each terminal, the condition of communication disruption occurring when inconsistent.In order to overcome the communication interruption condition, the restriction of effective time is set for identifier.Specifically, each processing for communication protocol provides the effective time limit.When processing was not finished in this time limit, this identifier was disabled.As selection,, carry out the reallocation of identifier and handle when confirming this identifier in base station side and being confirmed as when invalid.
For example, the open No.2003-92782 of Japan Patent has disclosed HRPD.
There is following problem in the above-mentioned method of improving situation by the effective time limit that is provided for terminal identifier.That is, for the system that uses the wireless environment such as HRPD, the viewpoint from effective use of Radio Resource requires base station and terminal to reduce communication service.For this reason, because the method that reduces the period of interrupt condition by the effectual time that shortens terminal identifier has been brought the increase of communication service, so this method is undesirable.
It is more effective to detect the invalidated identification symbol by the base station.Yet, because all base stations of communicating with of terminal all need to implement this function, in the situation about between base station that does not respond this function and terminal, connecting, correct recovery that can not the executive communication condition, this is a problem.
Summary of the invention
Made the present invention in order to address these problems.The purpose of this invention is to provide the communication terminal that can overcome the communication interruption condition.In wireless communications environment, when fault appears being connected in the channel between communication terminal and the base station, when for example communication disruption took place, communication terminal determined (for example, whether UATI) inconsistent is the reason that causes the connection fault to terminal identifier.Under the inconsistent situation of terminal identification information, abandon currently used terminal identifier, from connect fault, to recover, obtain new terminal identification information then.
Made the present invention in order to address the above problem.The present invention relates to the communication terminal in the wireless communication system, wherein be used in the terminal identification information of distinguishing each communication terminal by branch, executive communication connects between each communication terminal in base station and its service area.Communication terminal of the present invention comprises: communicate to connect the request transmitter unit, be used for communicating to connect request to base station; With terminal identification information reallocation unit, when not receiving when communicating to connect the replying of the required information of communicating to connect of request, to the reallocation of base station requests terminal identification information from the base station.
In view of the above, can solve the inconsistent connection fault that causes of terminal identification information.Even in the time of in the terminal identification information in fault occurs in the base station, the processing of terminal also can solve this fault.Because the present invention has utilized the function of conventional communication terminals, so the present invention can realize with low cost.
Communication terminal of the present invention also comprises reception mistake occurrence rate confirmation unit, when with the communicating by letter imperfect tense of base station, this confirmation unit is confirmed the reception mistake occurrence rate of received signal, wherein when reception mistake occurrence rate was lower than predetermined value, terminal identification information relocation request unit was to the reallocation of base station requests terminal identification information.
Discerned thus as the difference of not finishing between the inconsistent and unfavorable received signal environment of terminal identification information that communicates to connect (channel connection) reason.The inconsistent connection fault that causes of terminal identification information can be solved.Even in fault occurred in terminal identification information in the base station, the processing of terminal also can solve this fault.
Communication terminal of the present invention also comprises: receive mistake occurrence rate confirmation unit, when with the communicating to connect imperfect tense of base station, this confirmation unit is confirmed the reception mistake occurrence rate of received signal; The connection request repetitive, when reception mistake occurrence rate was lower than predetermined value, this unit repeated the request that communicates to connect to the base station; With connection request counting unit, number of times to the connection request of connection request repetitive is counted, wherein when connection request counting unit counted outnumber predetermined value the time, terminal identification information relocation request unit is to the reallocation of base station requests terminal identification information.
In view of the above, confirm that the inconsistent of terminal identification information is to cause not finish the reason that communicates to connect (channel connection).The inconsistent connection fault that causes of terminal identification information can be solved.Even in fault occurred in terminal identification information in the base station, terminal processes also can overcome this fault.
Communication terminal of the present invention is used to communicate to connect the connection request of (channel connection) to base station.When owing to do not communicate to connect the former of required information thereby do not finish when communicating to connect from base station, communication terminal sends the relocation request of terminal identification information (for example UATI) to the base station, to obtain new terminal identification information.
In view of the above, the inconsistent connection fault that causes of the terminal identification information such as terminal identifier that causes of wireless environment can mainly be solved by terminal.Even in fault occurred in terminal identification information in the base station, the processing of terminal can solve this fault equally.Because the present invention utilizes the function of conventional communication terminals, so the present invention can be realizing at low cost, and do not need to use new hardware resource.
Under the situation of not finishing with the base station that communicates to connect (channel is connected), communication terminal of the present invention is measured the reception mistake occurrence rate of received signal.When reception mistake occurrence rate was lower than predetermined value, communication terminal was made the relocation request of terminal identification information to the base station.
Discerned thus as the difference between the inconsistent and unfavorable received signal environment of the terminal identification information of not finishing the reason that communicates to connect (channel connection).The inconsistent connection fault that causes of terminal identification information can mainly be solved by terminal.Even in the time of in the terminal identification information in fault occurs in the base station, the processing of terminal also can solve this fault.
With the communicating to connect under (channel is connected) uncompleted situation of base station, communication terminal of the present invention is measured the reception mistake occurrence rate of received signal.When receiving the mistake occurrence rate and be lower than predetermined value, communication terminal sends the request that communicates to connect of repetition to the base station, and number of repetition is counted.When number of times surpasses predetermined value, to the reallocation of base station requests terminal identification information.
In view of the above, confirm terminal identification information inconsistent be to cause not finish the reason that communicates to connect.The inconsistent connection fault that causes of terminal identification information can mainly be solved by terminal.Even in the time of in the terminal identification information in fault occurs in the base station, the processing of terminal also can overcome this fault.
Description of drawings
Fig. 1 is the block diagram according to an embodiment of portable phone of the present invention;
Fig. 2 is the process schematic diagram that the basic call in the HRPD system connects;
Fig. 3 is a process schematic diagram of explaining the situation of the inconsistent generation of UATI;
Fig. 4 is the flow chart that inconsistent solution connects fault according to UATI;
Fig. 5 provides the procedure chart of another UATI.
Embodiment
Fig. 1 is the block diagram of conduct according to the portable phone of an embodiment of communication terminal of the present invention.In Fig. 1, portable phone 1 comprises with lower member: antenna 10 is used for carrying out radio communication with the base station; Wireless processing unit 11 is used to carry out the wireless processing of HRPD system; CPU 12, be used for carrying out the HRPD system wireless communication protocol processing and carry out the various processing of portable phone inside; RAM 13; ROM 14; RTC (real-time clock) 15 as timer; Input unit 16; Display unit 17; I/F 18 as the interface that connects external peripheral.UATI and the effective coverage information that is used for UATI are stored in the nonvolatile memory (static RAM (SRAM)) of RAM 13 or ROM 14 (under the EEPRROM situation).
By to RTC 15 countings, measure the effective time (for example, 54 hours) that is used for UATI.
Fig. 2 has shown the process 1 that the basic call of HRPD system connects.Begin to call out the portable phone (AT) of connection at first to the connection request message (step 102) of base station (AN) transmission in wait state (idle condition) as connection request.In the HRPD system, the device such as communication terminal is called as access terminal (AT), and the device such as the base station is called as access node (AN).
For from portable telephone (AT) to the base station wireless signal of (AN), use Access Probe control, disturb with other portable telephone avoiding.Portable telephone (AT) at first begins to launch with low transmitting power after Access Probe control, increases transmitting power then gradually.When base station (AN) received wireless signal from portable telephone (AT), base station (AN) returned and confirms to reply (AcAck) (step 102), so that stop the increase of the transmitting power of portable telephone (AT), because the base station does not need to increase transmitting power.
When portable telephone (AT) receives when replying (AcAck) from the affirmation of base station (AN), portable telephone (AT) suspends the increase of transmitting power, so that communicate between base station (AN) and portable telephone (AT) with the transmitting power of current emission.
Then, base station (AN) analyzes the message that receives from portable telephone (AT) in step 101, and to portable telephone (AT) transmitting business channel assignment message (step 103).
In the process that receives traffic channel assignment message, portable telephone (AT) is carried out the reception setting of downlink traffic channel under the radio condition of traffic channel assignment message defined, begin to set up reverse link traffic channel then.When base station (AN) received the signal of reverse link traffic channel, base station (AN) transfer channel was set up notice (RTCAck), informs that reverse link traffic channel has been established (step 104).
When portable telephone (AT) receives that when setting up notice (RTCAck) from the channel of base station (AN), portable telephone (AT) is finished message by Traffic Channel and told base station (AN): upstream (up channel) and downstream (down channel) has been set up (step 105).
According to said process, portable telephone (AT) is connected with base station (AN).
Fig. 3 shows the situation when the wireless sequence in the HRPD system takes place by UATI inconsistent.When base station (AN) receives connection request message from portable telephone (AT) (step 106), base station (AN) sends to portable telephone (AT) and confirms to reply (AcAck) (step 107).Yet the message that detects unsuitable UATI in analysis message constantly is destroyed.
Owing to this reason, repeat respectively from the emission of portable telephone (AT) connection request message of (AN) to the base station, and the emission that (AN) replys to the affirmation of portable telephone (AT) from the base station.This situation has stoped being connected between portable telephone (AT) and base station (AN), is changed until UATI.
Fig. 4 shows the process that connects fault according to solution of the present invention, and wherein said connection fault is to be caused by the inconsistent of URTI when the inconsistent generation of UATI.
When portable telephone (AT) when base station (AN) transmits connection request message, suppose to receive and be used for the affirmation whether confirmation signal arrived base station (AN) and reply (AcAck) (step 202).One fixedly the period do not receive and confirm to reply under the situation of (AcAck), then determine this signal no show base station (AN).Try to carry out another emission (step 203 and 204) with the bigger transmitting power that increases one-level.When not receiving that (AcAck) replied in affirmation, increase transmitting power up to maximum level (step 203 and 204).
When receiving that in step 202 (AcAck) replied in affirmation, determine that connection request message has arrived base station (AN).Next, determine whether the traffic channel assignment message of being asked by connection request message is received (step 205).Then, when the traffic channel assignment message within fixing period, received from base station (AN), carry out the foundation (step 206) of Traffic Channel.
Under the situation of not receiving traffic channel assignment message within the predetermined periods, confirm to be used for CRC (cyclic redundancy check (CRC)) the mistake occurrence rate (Merr) (step 207) of the grouping that physical layer receives, because think in the case, in the signal environment that has received, occurred among problem or the inconsistent UATI of appearing at.
When receiving mistake occurrence rate (Merr), think that bad received signal environment causes the reception fault above predetermined value (Nerr).So launch connection request signal (step 208 and 209) again.
When reception mistake occurrence rate (Merr) was lower than predetermined value (Nerr), it was no problem then to determine in the received signal environment, and the inconsistent possibility of definite UATI is higher.Then, under this signal conditioning, the number of times that connects the fault appearance is counted (step 210 and 211).Under count value (Mretry) surpasses the situation of predetermined value (Nretry), determine that then UATI goes wrong, thereby carry out UATI obtain processing (UATI redistribute processing) (step 212) again.
Because the inconsistent of the UATI between base station (AN) and the portable telephone (AT) is to solve after obtaining again of UATI handled, though therefore solved radio condition well but still can not set up the situation of channel connection.
Fig. 5 has shown the process of obtaining processing again of UATI.Launch an end-of-dialogue message, with finish from portable telephone (AT) to the base station dialogue connection processing (step 301) of (AN).When base station (AN) received end-of-dialogue message, base station (AN) sent to portable telephone (AT) and confirms to reply (AcAck) (step 302).
Then, portable telephone (AT) is to base station (AN) emission UATI request message (step 303).Base station (AN) response USTI request message is beamed back an affirmation and is replied (AcAck).
Subsequently, base station (AN) is to portable telephone (AT) emission URTI assignment messages (step 305).Portable telephone (AT) obtains new UATI from the UATI assignment messages, and registers this new UATI within it, and (AN) receives the UATI assignment messages from the base station.In addition, portable telephone (AT) is finished message (step 306) to UATI of base station (AN) emission.
Base station (AN) receives UATI from portable telephone (AT) and finishes message, and confirms that portable telephone (AT) has obtained a new UATI, is transmitted into portable telephone (AT) (step 307) affirmation is replied (AcAck).
According to said process, portable telephone (AT) has obtained new UATI, and this UATI startup communicates to connect with base station (AN's).
Above the portable telephone as one embodiment of the invention is explained.Yet, the invention is not restricted to portable telephone.The present invention not only is applied to PDA (personal digital assistant) but also is applied to the communication terminal of other type, such as luggable computer.
Although the preferred embodiments of the present invention above have been described, should be appreciated that these embodiment are examples of the present invention, and can not think restriction.Do not deviating under the spirit and scope of the invention condition, can make interpolation, omission, replace and other modification.So, can not think that the present invention is limited by above-mentioned explanation, but only be limited by appended claim.

Claims (3)

1. the communication terminal in the wireless communication system wherein is used in the terminal identification information of distinguishing each communication terminal by branch, and executive communication connects between each communication terminal in the coverage of base station and this base station, and described communication terminal comprises:
Communicate to connect the request transmitter unit, be used for communicating to connect request to base station; With
Terminal identification information relocation request unit is used for not receiving from the base station when communicating to connect the replying of the required information of communicating to connect of request, to the reallocation of base station requests terminal identification information.
2. communication terminal according to claim 1 further comprises:
Receive mistake occurrence rate confirmation unit, be used for the communicating to connect imperfect tense of base station, confirm the reception mistake occurrence rate of received signal,
Wherein when receiving the mistake occurrence rate based on predetermined value, terminal identification information relocation request unit is to the reallocation of base station requests terminal identification information.
3. communication terminal according to claim 1 further comprises:
Receive mistake occurrence rate confirmation unit, be used for the communicating to connect imperfect tense of base station, confirm the reception mistake occurrence rate of received signal;
The connection request repetitive is used for repeating the request that communicates to connect to the base station when receiving the mistake occurrence rate based on predetermined value; With
Connection request counting unit is used for the connection request number of times of connection request repetitive is counted,
When wherein the number of being counted when connection request counting unit was based on predetermined value, terminal identification information relocation request unit was to the reallocation of base station requests terminal identification information.
CNB2004100859473A 2003-10-27 2004-10-25 Communication terminal Expired - Fee Related CN100380848C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003366083 2003-10-27
JP2003366083A JP4818581B2 (en) 2003-10-27 2003-10-27 Communication terminal

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CN1612502A true CN1612502A (en) 2005-05-04
CN100380848C CN100380848C (en) 2008-04-09

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KR100626902B1 (en) 2006-09-20
US20050090254A1 (en) 2005-04-28
US8588804B2 (en) 2013-11-19
JP2005130374A (en) 2005-05-19
JP4818581B2 (en) 2011-11-16
KR20050040743A (en) 2005-05-03
CN100380848C (en) 2008-04-09

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